| Coculture with specific bacteria enhances survival of Lactobacillus plantarum NC8, an autoinducer-regulated bacteriocin producer, in olive fermentations. | |
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MedLine Citation:
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PMID: 20227607 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Bacteriocin production in Lactobacillus plantarum NC8 is activated by coculture with specific bacteriocin production-inducing bacterial strains. The system is further regulated by a three-component regulatory system involving a specific autoinducer peptide (PLNC8IF). We have used L. plantarum NC8 as a starter culture in Spanish-style green olive fermentations and examined the influence of coculturing in its survival. We found that L. plantarum NC8 greatly enhanced its growth and survival in the olive fermentations when co-inoculated with two specific bacteriocin-production inducing strains, i.e. Enterococcus faecium 6T1a-20 and Pediococcus pentosaceus FBB63, when compared to singly-inoculated fermentations. In addition, a constitutive bacteriocin-producer NC8-derivative strain was used as a control in the olive fermentations and showed also better viability than the parental NC8 strain. Our results suggest the involvement of bacteriocin production in the viability enhancement found in both cases. We postulate that the presence of specific bacteria is recognized by L. plantarum NC8 as an environmental stimulus to switch a specific adaptive response on, most probably involving bacteriocin production. The design of novel bacteriocin-producing starter cultures for food fermentations should consider their constitutive versus regulated character. |
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Authors:
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Jos? Luis Ruiz-Barba; Bel?n Caballero-Guerrero; Antonio Maldonado-Barrag?n; Rufino Jim?nez-D?az |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-10-09 |
Journal Detail:
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Title: Food microbiology Volume: 27 ISSN: 1095-9998 ISO Abbreviation: Food Microbiol. Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-03-15 Completed Date: 2010-05-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8601127 Medline TA: Food Microbiol Country: England |
Other Details:
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Languages: eng Pagination: 413-7 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2009 Elsevier Ltd. All rights reserved. |
Affiliation:
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Departamento de Biotecnolog?a de Alimentos, Instituto de la Grasa/CSIC, Avda\Padre Garc?a Tejero no. 4, Seville, Spain. jlruiz@cica.es |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Bacteriocins
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biosynthesis* Coculture Techniques Colony Count, Microbial Enterococcus faecium / physiology* Fermentation Food Microbiology Lactobacillus plantarum / growth & development*, metabolism Microbial Viability Olea / microbiology* Pediococcus / physiology* |
| Chemical | |
Reg. No./Substance:
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0/Bacteriocins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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